Top subreddits, ranked from a live crawl
The largest, busiest and fastest-growing communities in the Prowlo catalog. These are the subreddits we track — not a map of all of Reddit — and every number carries the date we captured it.
Most active
Updated Sep 25
A subreddit for Bot Bouncer, a Developer Platform app designed to combat harmful or disruptive bots. Now #1 on the Developer Platform!
r/AskReddit is the place to ask and answer thought-provoking questions.
Vote in the Trials, make tough choices, and be judged by the fluffy Law Lord. Then create your own Trial, using the endless possibilities of our editor. We have nearly 1,000 icons to choose from, and you can add your own text to each one. Be creative and ruthless. The harder the decision, the more fun it is.
The official Subreddit to talk about or play Farm Merge Valley on Reddit! Whether you're a casual player or a farming fanatic, Farm Merge Valley is your cozy countryside escape. Start merging, start growing, your dream farm awaits! 🚜💚
r/teenagers is the biggest community forum run by teenagers for teenagers. Our subreddit is primarily for discussions and memes that an average teenager would enjoy to discuss about. We do not have any age-restriction in place but do keep in mind this is targeted for users between the ages of 13 to 19. Parents, teachers, and the like are welcomed to participate and ask any questions!
The community hub for WARDOGS a 100-player, 3-team tactical FPS by Bulkhead set on a destructible Eastern European battlefield where teamwork pays and cash is king.
New & used video games, consoles, handhelds, retro, and gaming merchandise. Up Game Shop has the latest and greatest video game deals on the internet.
Welcome to r/classicwow. This is a subreddit for the discussion of anything related to World of Warcraft: Classic. Chat r/ClassicWoW Discord Resources Easily answered questions Classic Census/Demographic Survey [Survey Results](https://docs.google.com/spreadsheets/d/1xIw7HPEp
24/7 Video Game • 🎮 All the best video games, all the time. • 🏆 Join the pro gamers community. • 🆓 Sign up for a free web page.
Reddit's No1 subreddit for Pokemon Go, Niantic's popular mobile game!
The uncensored front page of the NFL. No overbearing mods, no arbitrary bans, and no "No Fun League" rules. Just pure NFL discussion, news, and memes. Speak your mind and have fun.
This subreddit is dedicated to providing a space for people who would like to post their own potential DEATH BATTLE! matchups for people to see and debate over. This sub is meant for simple matchups, or talking about what would be the best matchups for the characters you love!
Officially Recognized fan-community of Aniimo, a free-to-play, next-gen creature-catching open-world RPG, coming to console, PC and mobile in 2026!
This subreddit is for those who are looking to make some new friends on Reddit. 18+ only. No NSFW allowed.
Ask away! Disclaimer: This is an anonymous forum so answers may not be correct
Reddit's sports betting forum, dedicated to sports betting picks for all sports - free football picks today, basketball sports betting picks, free baseball bets, hockey sports bets, NFL sports betting, free NBA picks today, free MLB picks, tennis sports bets, and more! Small sports bets to huge parlays. Slight favorites to big underdogs. All action is welcome here!
The official 4tran sister sub, spun off of r/4tran and 4chan's /lgbt/ board. This subreddit is no longer private (note: this may or may not be true) but please continue going outside, touching grass, listening to good music, drinking water, eating food, and doing anything other than doomscrolling. We still do not condone violence. Banner Artist: u/EasternLow3751
Ask silly questions, enter the raffle, customize your unique Meowi, and climb the leaderboards!
Have a question but not sure where to ask? You’ve come to the right place!
A community for practical questions buying advice useful experiences and everyday recommendations
"Pain makes you stronger, fear makes you braver, heartbreak makes you wiser" A global peer-support community for navigating relationship loss.
Reddit community and fansite for the free-to-play third-person co-op action shooter, Warframe. The game is currently in open beta on PC, PlayStation 4|5, Xbox One/Series X|S, Nintendo Switch 1|2, iOS, and Android!
r/ValueChoiceBox is a general discussion space for practical questions, useful experiences, buying notes, and everyday recommendations.
All about Missy Moo and her daily dramas #missymoo #missysoundry #fluffybunnys1 #rspca #savemolly #animalabuseaustralia #childprotectionvictoria #dhsvictoria #childneglect #ferals #hamiltonvictoria #dogrooter #animalabusers #orangedoor #orangedoorvictoria #orangedooraustralia #warrnamboolbasehospital #warrnamboolmaternity
The developer supported, community run subreddit dedicated to the Fortnite pew pew game modes by Epic Games.
An unofficial subreddit to discuss the 2018 indie game Deltarune and its creator Toby Fox https://redd.it/145l7wp https://discord.gg/deltarune https://lemmy.world/c/undertale_deltarune
Welcome to the official subreddit of the PC Master Race / PCMR! All PC-related content is welcome, including build help, tech support, and any doubt one might have about PC ownership. You don't necessarily need a PC to be a member of the PCMR. You just have to love PCs. It's not about the hardware in your rig, but the software in your heart! Join us in celebrating and promoting tech, knowledge, and the best gaming, study, and work platform there exists. The Personal Computer.
A place to share and discuss your original characters. Both original and fandom OCs allowed! LGBTQ+ friendly!
This is the official community for Genshin Impact (原神), the latest open-world action RPG from HoYoverse. The game features a massive, gorgeous map, an elaborate elemental combat system, engaging storyline & characters, co-op game mode, soothing soundtrack, and much more for you to explore!
Are you looking for a new friend or a kind voice? This is a subreddit for people looking to make friends from all over the world. Come to post and talk, private message others, discuss and share in a supportive manner.
A subreddit dedicated to HELLDIVERS and HELLDIVERS II, intense co-op shooters set in a satirical dystopian future where you play as one of mankind's elite soldiers determined to spread managed democracy. Developed by Arrowhead Game Studios.
Valheim is a brutal exploration and survival game for solo play or 2-10 (Co-op PvE) players, set in a procedurally-generated purgatory inspired by viking culture. It's available in Steam Early Access, developed by Iron Gate and published by Coffee Stain. https://discord.com/invite/valheim https://steamcommunity.com/app/892970/discussions/ https://www.facebook.com/valheimgame https://twitter.com/valheimgame
jugkfmghgug a comedi subreddit about mild inconveiences where every thing is perfectly spelled correctely
The mental health subreddit is the central forum to discuss, vent, support and share information about mental health, illness and wellness.
A place to discuss career options, to ask questions and give advice!
Alles rund um die Themen Aktien, Derivate & co! Unser Motto: Kartoffeln together strong! 🥔🚀 keine Anlageberatung
UPDATE REGARDING THIS SUB Is it news? Post it. I've set up an IFTTT recipe to x-post every new submission made to /r/news, /r/worldnews, and various news outlets on YouTube. Basically, this sub is on autopilot. I'm not removing any news posted here. No bias. No filter. No censorship. RULES: No harassment. No slurs. Follow Reddit's rules.
A mutually supportive community where deeply emotional things you can't tell people you know can be told. Whether it's long-standing baggage, happy thoughts, or recent trauma, posting it here may provide some relief. We'll listen, and if you want, we'll talk. We aim to keep this a safe space.
A fan-run subreddit dedicated to discussing the popular webshow, DEATH BATTLE!
This is the place for indie devs and gamers to share anything, be it game development, their favorite games or just cool images, GIFs and music from an indie game in a casual community-run environment. If you're an indie gamer, this place welcomes you too! After all, every gamer is a potential indie developer!
Showing 50 of the 4,013 communities Prowlo tracks — the catalog grows daily.
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What this list is, and what it isn’t
There are over a hundred thousand active subreddits. This page ranks the ones in the Prowlo catalog — currently 4,013 communities, growing every day as users add Watchers and our discovery pass finds new ones. It is not a complete census of Reddit and we are not going to pretend otherwise, because a ranking is only as good as the freshness of what sits behind it.
What you do get is numbers with a date on them. Every community here is re-checked on a rolling schedule through our own data pipeline, and every ranking states when it was captured. That matters more than it sounds: most “top subreddits” lists on the web are copies of a scrape that stopped running years ago, and several of the tools that produced them broke for good in May 2026 when Reddit started returning 403 to unauthenticated requests.
Largest, most active, fastest growing
Largest sorts by subscriber count. It is the ranking everyone asks for and the least useful one for deciding where to spend your time — subscriptions accumulate forever and never expire, so the number measures history rather than activity.
Most active sorts by posts per day sampled from each community’s newest posts on Reddit — the real span those posts cover, not a rounded window. This is the ranking to look at if you are choosing communities to participate in: it tells you where conversation is actually happening, and how fast the front page turns over.
Fastest growing compares each community’s current subscriber count against the nearest snapshot around 30 days back. It needs real history to exist, so it stays gated until we have it rather than extrapolating from a few days of data.
The size filters exist because ranking a 5,000-member community against r/AskReddit is meaningless. Filtering to 10K–100K is where most of the genuinely useful communities for founders and marketers live — big enough that people are reading, small enough that a good answer stays on the page for more than an hour.
Don’t pick your subreddits from a top-N list
This page is useful for orientation and for settling arguments about which community is bigger. It is a bad way to choose where to post. The largest communities are also the most saturated, the most heavily moderated, and the ones where every competitor in your category has already tried the same thing. A comment in a subreddit posting a thousand times a day is visible for minutes.
Start from your niche instead. Describe your product in the subreddit finder, check each match’s activity and promo tolerance, then expand the shortlist with shared-audience neighbors. Watch the ones that survive that filter and let your agent monitor them over MCP — where these rankings are a tool call away too: catalog_top_subreddits, free.
Frequently asked questions
What is the biggest subreddit?
Across Reddit as a whole, r/funny, r/AskReddit and r/gaming have traded the top spot for years, each with tens of millions of subscribers. The ranking on this page is narrower and more honest about it: it covers the communities in the Prowlo catalog, ordered by the member counts from our own crawl, so the numbers carry a capture date instead of being copied from a years-old scrape.
How many subscribers does r/AskReddit have?
It is one of the handful of default-tier communities in the tens of millions, and we are not going to quote you a precise figure we have not measured. If r/AskReddit appears in the list above, the number shown is what our own crawl recorded, with the capture date next to it. Raw size is also the least useful thing about it: a comment in a subreddit that posts thousands of times a day stays visible for minutes.
What does "most active" rank by?
Posts per day, sampled from each community's own newest posts on Reddit — the real span those posts cover, not a rounded window — with subscriber count as the tiebreaker. Samples older than two weeks are treated as unmeasured, and unsampled communities sort last. It is a much better guide than subscriber count to whether a community is alive — plenty of million-member subreddits post less than a hundred-thousand-member one.
Why is fastest-growing sometimes unavailable?
Growth rankings need at least 30 days of our own snapshot history for a meaningful number of communities. Rather than compute a growth rate from two points a few days apart and present it as a monthly trend, we show you the date tracking started and ask you to come back. It is the same reason every growth figure on the site is labelled with its real day-span.
How many subreddits does Prowlo track?
4,013 active communities, and the catalog grows daily as users add Watchers and our discovery pass finds new ones. NSFW, private, banned and unreachable subreddits are excluded by design, so this is not a complete map of Reddit — it is the slice we can crawl reliably and keep current.
Can my AI agent read these rankings?
Yes. The same rankings are exposed through Prowlo's MCP server as catalog_top_subreddits — largest, most active, or fastest growing, filterable by size band, free and unmetered. Connect your agent to api.prowlo.com/mcp and it can browse the field, vet a candidate with catalog_get_subreddit, and start watching it in one conversation.
How do I find subreddits for my own niche?
A top-N list is a poor targeting tool — the biggest communities are the most saturated and the hardest to be useful in. Use the subreddit finder instead: describe your product or audience and get matched to the communities that discuss it, then filter by posting activity and promo tolerance.
More free Prowlo tools
Subreddit Finder
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Subreddit Stats
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Reddit Search Builder
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Comment Humanizer
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Reddit MCP Server
Give your AI agent Reddit access